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Lorentz invariance of scalar field action on κ-Minkowski space-time

Sebastian Nowak

hep-tharXiv:hep-th/0501017

Abstract

We construct field theory on noncommutative κ-Minkowski space-time. Having the Lorentz action on the noncommutative space-time coordinates we show that the field lagrangian is invariant. We show that noncommutativity requires replacing the Leibnitz rule with the coproduct one.

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